On Fri, 31 Mar 2006 22:35:10 -0800, Steve R. Hastings wrote: > The list.sort() method accepts a "key=" parameter to let you specify a > function that will change the way it sorts. In Python 2.5, min() and > max() now accept a "key=" parameter that changes how the functions decide > min or max. > > Should any() and all() take a key= argument? > > Example: > >>>> lst = [2, 4, 42] >>>> any(lst, key=lambda x: x == 42) > True
In my opinion, that's an abuse of the term "key". Here's another way of doing it: lst = [2, 4, 42] any(map(lambda x: x==42, lst)) > I kind of like the key= option. The need isn't as strong as with > .sort(), min(), and max(), but consistency can be a good thing. I'd > personally like to see key= anywhere it makes sense. This isn't one of those places. -- Steven. -- http://mail.python.org/mailman/listinfo/python-list